231119 has 8 divisors (see below), whose sum is σ = 267168. Its totient is φ = 195840.

The previous prime is 231109. The next prime is 231131. The reversal of 231119 is 911132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231119 - 2⁸ = 230863 is a prime.

It is a super-2 number, since 2×231119² = 106831984322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231097 and 231106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 839 + ... + 1079.

It is an arithmetic number, because the mean of its divisors is an integer number (33396).

2²³¹¹¹⁹ is an apocalyptic number.

231119 is a deficient number, since it is larger than the sum of its proper divisors (36049).

231119 is a wasteful number, since it uses less digits than its factorization.

231119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385.

The product of its digits is 54, while the sum is 17.

The square root of 231119 is about 480.7483749323. The cubic root of 231119 is about 61.3684587971.

The spelling of 231119 in words is "two hundred thirty-one thousand, one hundred nineteen".